Message

In an Invoice line (BG-25) where the Invoiced item VAT category code (BT-151) is "Exempt from VAT", the Invoiced item VAT rate (BT-152) shall be 0 (zero).

Context
cac:InvoiceLine/cac:Item/cac:ClassifiedTaxCategory[normalize-space(cbc:ID) = 'E'][cac:TaxScheme/normalize-space(upper-case(cbc:ID))='VAT'] | cac:CreditNoteLine/cac:Item/cac:ClassifiedTaxCategory[normalize-space(cbc:ID) = 'E'][cac:TaxScheme/normalize-space(upper-case(cbc:ID))='VAT']
Test
(xs:decimal(cbc:Percent) = 0)
Usage
/ ubl:Invoice / cac:InvoiceLine / cac:Item / cac:ClassifiedTaxCategory / cbc:Percent
/ ubl:CreditNote / cac:CreditNoteLine / cac:Item / cac:ClassifiedTaxCategory / cbc:Percent